Roosevelt Mechanical Valves

In power-free environments where fluid control is mission-critical, mechanical valves remain a cornerstone of reliability. The Roosevelt MK249 Series is designed for gas applications that demand ruggedness, precision, and simplicity.

Whether it’s remote mining, industrial automation, or safety systems—when power fails, MK249 still performs.

🔧 Product Overview: MK249 Mechanical Valve Series

• Type: Mechanical Valve
  
  
• Media: Gas
  
  
• Connection: NPT (1/2” and 3/4”)
  
  
• Flow Coefficient (Kv):
  
  
• • 1/2” = 3.5 m³/h
    
    
  • 3/4” = 4.0 m³/h
    
    
• Pressure: Up to 5 PSI
  
  
• Temperature Range: -10°C to +90°C
  
  
• Sealing Material: NBR (code B)
  
  
• Body Material: High-grade metal alloy
  
  
• Expected Cycle Life: 1.5+ million cycles
  
  

📄 Download Full Datasheet:

👉 MK249 Series - Technical Sheet (PDF)

📏 Dimensional Data

This makes installation easy in tight spaces or retrofit operations.

🏭 Applications

The MK249 Series is ideal for:

• Gas lines in industrial automation
  
  
• Safety shut-off systems
  
  
• Mining operations
  
  
• Pneumatic control units
  
  
• Manual control setups in remote locations
  
  

Because it doesn't rely on electricity or electronics, this valve is fail-safe by design.

💡 Why Choose Roosevelt’s MK249 Mechanical Valve?

✅ No wiring – 100% mechanical operation

✅ Long lifespan – over 1.5 million cycles

✅ Works in harsh conditions – from -10°C to +90°C

✅ High compatibility with standard NPT fittings

✅ Low maintenance and field-serviceable

SMART TODAY, A LONG-LASTING CHOICE

When control matters, MK249 gets the job done—again and again.

🔗 LET’S MAKE YOUR WORLD FLOW